The damaged pipe at a Swedish unloading terminal led to the creation of a special design for molten sulphur tanks. This required a 17 m long vertical pump that had to be lowered in from the top to avoid tapping the tank at the bottom. VDMA's Stephan Näckel and Per Karlsson describe this technical development. 25 February 2010
To reduce productivity losses caused by process equipment failure, a US specialty chemicals manufacturer has tried a number of monitoring technologies for its pumping systems. After installing shaft power monitors, the annual maintenance and downtime costs for three of its pumps were reduced to zero. 25 February 2010
To maintain its 24/7 schedule, a US chemical plant relies on ammonia shipped via a 14-mile-long pipeline. However, when repairs came due an alternate method of transfer was needed. The solution was a skid with a booster pump powerful enough to meet the pressure and volume demands. A Blackmer sliding vane pump fitted the bill. 25 February 2010
When an international paint producer was looking to upgrade its plant in Finland, it was also looking to cure a number of problems and decided upon LPP pumps. Close cooperation between manufacturer and supplier brought considerable benefits including reducing product time, reduced maintenance and energy costs in addition to improved operational reliability. 25 February 2010
Pump consultant, Brian Nesbitt attempts to clarify the technical language used by pump engineers by explaining common terms used in conjunction with pump application and pump design. 23 February 2010
The additives present in many modern sealing compounds, can be quite abrasive, and finding a dosing pump that can handle them without problems is more of a challenge than it used to be. However, there are reliable non-damaging solutions using a range of pump types. 05 February 2010
When installing AC drives with electric motors into potentially explosive atmospheres, company’s run the risk of accidents which can result in injuries and downtime. Since the introduction of ATEX directives into the European Union, the same procedure is safer and has simplified; requiring only the selection of equipment certified for the appropriate area. 17 December 2009
An ethylene plant in Saudi Arabia needed to reduce thermal cycling time while maintaining the high level of cleanliness required to prevent damage of the turbine blades. SABSCO was able to achieve this goal in the hostile environment and in a short time frame, by utilizing the company’s Softstart technology. 06 November 2009
Wet scrubber FGD plants play a critical role in reducing emissions of sulphur dioxide from coal-burning power stations. However, the abrasive and corrosive wet limestone slurry used in this process demands pumps of high levels of reliability. Wernert pumps provided the answer for one European power station. 06 November 2009
Despite the tight credit markets and challenging global economy, 2008 saw further consolidation within the pump sector. Listed below are the transactions that took place during the first and second quarters of 2008. Third and fourth quarter deals were published in the February 2009 issue of Pump Industry Analyst. Subscribers to Pump Industry Analyst have access to a 4-year archive on the website as part of their annual subscription. 03 June 2009
Comprehensive and interrelated communication between the field units and a central control station is indispensable in the modern process industry. This is particularly so where many pumps are performing delicate and accurate operations. Ralph Held, director of engineering and product management of sera at Seybert & Rahier GmbH discusses how a new generation of diaphragm dosing pumps lends itself to automation. 22 May 2009
Positive displacement pumps are still the preferred choice for metering highly corrosive and caustic chemicals. However, when it comes to reducing life-cycle costs, Chuck Treutel, P. E, of the Watson-Marlow Pumps Group, argues that peristaltic pump technology has the advantage over diaphragm and progressive cavity types. 07 May 2009
In this article, Martijn Haan of Verder BV first considers the general construction and action of air operated double diaphragm (AOD) pumps, before discussing the particular advantages of plastic pumps for the safe handling of aggressive and toxic liquids. 05 March 2009
In the pumping industry, contractors often meet with difficult operating conditions, such as tunnelling deep underground or particularly abrasive pumping media. However, pumping in extremely cold conditions, such as near-zero temperatures, comes with its own particular risks. Stefan Hörnschemeyer of Tsurumi Pumps offers practical advice on what to do when the temperature drops. 05 March 2009
One of the things that often are crucial at a construction work site is the dewatering issue. Groundwater from surroundings as well as rain can flood the whole site if not dealt with properly. When digging below the water table, the amount of water entering the site from the surrounding can be quite large, but this depends on the environment. Ola Hällgren presents an introduction of the role of submersible pumps in controlling the water level. 05 March 2009
Modern reverse osmosis desalination plants operate with high base load capacity and therefore the mechanical reliability and efficiency of high-pressure membrane feed pumps deserve thorough consideration. Production losses due to mechanical failure or higher energy consumption due to lower hydraulic efficiency can be significant factors in the plant operating costs. Miguel Angel Rivas, product portfolio manager for Sulzer Pumps, discusses the options available. 05 March 2009
The largest civil engineering project in Ireland entailed building a road tunnel under a roaring tidal river. The massive components had to be prepared in advance and floated into place. This involved moving thousands of gallons of water, so SPP Pumps were brought in to make the crossing possible. 02 March 2009
A food processing plant wanted to find a way to meet odour control regulations without breaking the bank. A range of progressing cavity pumps from Mono made it possible to enclose completely the processed meat and improve the working environment at relatively low cost. 02 March 2009
The pumping station at a European holiday park was old and in need of replacement. To transfer the site's wastewater and effluent effectively, the park decided to replace its current system with a package from pump specialist Mono NOV. 02 March 2009
A biogas plant required a solution to keep its digestion process working efficiently, ensuring that food waste was reduced down to comply with regulations governing animal by-product disposal. Mono's TR Muncher fitted the bill, reducing the waste to an homogenous product. 02 March 2009
Large buildings are prone to enormous variations in their water use. Any new system would need to match these variations using the least amount of energy. Here's how the world's largest commercial building met this challenge with a system that will not only pay for itself on energy-savings, but will also pay the costs to replace itself in its lifetime. 02 March 2009
When a Croatian hotel needed a wastewater treatment plant installed on site, but had no existing connection to the municipal sewer tunnel system, a bespoke plant was the only realistic option. A system of modular PE sewage treatment tanks with six Tsurumi submersible aerators was a cost effective solution that also met local noise level requirements 02 March 2009
When a Croatian hotel needed a wastewater treatment plant installed on site, but had no existing connection to the municipal sewer tunnel system, a bespoke plant was the only realistic option. A system of modular PE sewage treatment tanks with six Tsurumi submersible aerators was a cost effective solution that also met local noise level requirements. 02 March 2009
One of the more challenging applications for a pump is the hazardous conditions on an oil rig out at sea. A European oil and gas equipment manufacturer ensured that pump operators were safe by using a range of Bosch Rexroth products to remotely control its diesel engine-driven pumps. 02 March 2009
Multiphase boosting is widely accepted by major oil companies. When a large-scale oil project in Algeria prioritized high reliability and safety of the whole pump system and required a single point responsibility, it looked to German manufacturer Bornemann Pumps to provide a solution. Specialists in twin-screw technology and multiphase boosting, the company was on hand to demonstrate its strength as a pump supplier and as a partner for turnkey solutions. 02 March 2009
At a European sewage treatment works, operations relied on the efficiency and productivity of the re-circulating scrubber liquor pumps that control odour. Fluid handling systems specialist, AxFlow, supplied equipment and a decade on the company returned to see if its pumps had stood the test of time. 02 March 2009
A deteriorating water supply system on Toas Island in Venezuela made it necessary to install a large reverse osmosis desalination system, designed by the WET division of ITT. A steady stream of potable water is now available for the island residents. 02 March 2009
At the smelter of a platinum group metals producer in South Africa, a new pump was required to transfer highly abrasive materials and keep the slurry in motion during the processing of ore. The company decided to install three peristaltic pumps designed to withstand the demands and capacity of pumping slurries. 02 March 2009
Mining salt often leaves caverns that have to be filled to stabilize them once extracted. One method is to fill these caverns with tailings produced during the salt purification process. A hydraulic, quadruple-action piston membrane pump, ideally suited for abrasive liquid media, from ABEL was found to be the best solution to transport the packing from the hopper into the mine via a pipeline. 02 March 2009
At the Shanghai Chemical Industrial Park, China, a new waste incinerator system was designed to decontaminate and neutralize solids, liquids, gases, and sludges. Calling on a service and equipment supplier for the rock and minerals processing industry, the park was looking to achieve steady temperatures and efficient disposal, while maintaining a high level of safety at all times. 02 March 2009
A private health club in the UK wanted the best bathing water for its 8,000 customers. A combination of new filters and Grundfos-Alldos dosing pumps and controllers created an accurate and easy-to-measure system which made swimming a pleasure again. 02 March 2009
Various wastewater treatment processes require the controlled dosing of chemicals into the process stream either to assist the treatment or to remove undesirable elements. In order for the dosing pumps to work efficiently, works operators need to be constantly aware of what is happening in the treatment process so that dosing levels and speeds can be adjusted accordingly. UK-based Partech Instruments has developed feed forward control systems employing on-line analysers in the inlet stream to send real-time data to a dosing control system for automatic adjustment of the dosing pump. Bryan Orchard reports. 02 March 2009
Rainwater leachate from metal and chemical industrial process waste is extremely dangerous and creates a highly inhospitable environment for pumps. Tsurumi supplied its cast iron KTZ pump range for transporting the highly corrosive liquid and matched the client's requirements for a lightweight and robust product. 02 March 2009
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